Raker-gage



e. A. REINKE.

BAKER GAGE.

APPLICATBON FILED JUNE 1, 1920.

1,373,636.. Patented Apr. 5, 1921.

IE I A INI I VTZR.

BY Q

- AT; ORNEY UNITED STATES PATENT OFFICE.

BAKER-GAGE.

Specification of Letters Patent.

Patented Apr. 5, 1921.

Application fi1ed June 1, 1920. Serial No. 385,577.

To all whom it may concern:

Be it known that I, GUSTAVE A. REINKE, a citizen of the United States, residing at Stockton, in the county of San Joaquin, State of California, have invented certain new and useful Improvements in Raker- Gages; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in saw gages such as are employed in the setting and sharpening or filing of saws, and particularly to a type adapted to be used in connection with the large cross-cut saws universally used in the woods to fell the timber.

In the majority of saws now constructed for this purpose, raker or cleaner teeth are interposed between the ordinary peg teeth,

such an arrangement having been found to produce better work. These raker teeth are slightly below the level of the other teeth, and to insure proper working of the saw, it is important that they shall be a certain and exact distance below the others.

The principal object of my invention therefore is to provide a device by means of which the necessary distance between the different kinds of teeth may be gaged and set to a nicety, and then the teeth filed down if needed so that they exactly measure up to requirements, and without the chance of their being over-filed. In this manner, and with a minimum of time and labor, the sawmay be brought to the proper state of working efliciency.

A further object of the invention is to produce a simple and inexpensive device, and yet one which will be exceedingly effective for the purposes for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the followin specification and claims.

In the drawings similar characters of reference indicate corresponding parts the several views.

Figure 1 isa longitudinal elevation the device showing one side thereof.

Fig. 2 is a similar. view of the reverse side.

Fig; 3 is a bottom plan View.

F 4L is an end elevation of the device.

F 1g. 5 is a cross section taken on a line 5-5 of Fig. 2.

Fig. 6 is a fragmentary top plan View.

Referring now more particularly to the characters of reference 011 the drawings, the numeral 1 denotes a plate-frame preferably of steel, suitably reinforced at various points n 1ts length by integral flanges 2 and havmg longitudinal and transverse pairs of plates 3 and 4 fixed thereto along the top and bottom respectively, each pair being spaced apart vertically a certain distance and being to one side of the center of length of the frame;

The upper plates 3 are connected by a bridge 5 extending upwardly therefrom and forming a bearing for a threaded stem 6 on which above the bridge is fixed a pinion 7 having a finger wheel 8 thereabove to turn the same. The periphery of this wheel 1s marked to show a certain number of even subdivisions as shown at 9, each mark having a corresponding knurl'or notch 10 in the edge of the wheel adapted to be engaged by a spring catch 11 fixed to the bridge 5. v

The lower end of the stem 6 below the bridge terminates in a pin 12 turnably seated in a leaf-spring 13 whose ends rest on the upper surface of the plates 3. Fixed to the spring and projecting downwardly therefrom in line with the pin 12 is a peg 14, square in cross section adapted to pro ject somewhat below the lower face of the plates 3 which are in alinement with each other.

The pinion 7 meshes with a pinion 15 of the same size having a threaded stem 16 of the same pitch as the stem 6, whose bearing is half in the bridge 5 and half in a removable member 17 set into the bridge against lateral movement and held in place by the screws 5 which secure the bridge to the plates 8, the screw holes in said member 17 being slotted from their inner end,

as shown at 17 This member is thus adapted to be removed by pulling the same away from the bridge, in a plane parallel thereto, so that the two-part bearing of the stem 16 is drawn apart, and the stem taken out. Otherwise,

since the pinion is formed therewith and is furthermore covered by the overhanging wheel 8, it would be impossible to locate or remove thepinion and stem. The lower end of the stem 16 is formed into a pin 18 which is turnably fixed in the upper end of a plate 19 parallel to the frame 1. This plate is adapted for vertical movement in the frame and is kept from sidewise movement by guides 20 on the frame 1. lt is also kept from transverse movement relative thereto and maintained in a certain state of tension by means of a flat spring 21 hearing thereagainst, said spring being secured and its tension adjusted if necessary by a screw 22 passing through a vertically slotted hole 23 in the plate 19 and threaded into the portion of the frame 1 back of the said plate.

To the lower end of the member 19 is fixed a transverse plate 24, positioned above the plates 4, and extending over the central space therebetween, the plates 4 being in exact alinement with each other and the plate 24 being exactly parallel thereto.

A longitudinal slot 25 is cut through the plate 24 of sufficient width to accommodate the teeth of a saw, said slot having one'ed e in the same vertical planeas the or go of the plate 3 on that side, so that the saw may rest against such edge while the teeth project into the slot. The edges of the flanges 2 on that side are also in the same vertical plane with said edge of the plate 3, so that the saw has two surfaces against which it may rest, thus insuring that the teeth will project into the slot 25 without interference.

Adjustable screws 26 are also provided a certain distance on each side of the center of the frame, so that a jointer file may be clamped between the lower ends of the same and the plates 4.

It will be evident from the foregoing description that the peg 14 and the plate 24 move vertically simultaneously and at the same rate of speed when the wheel -8 is turned. 4

The pinion 7 turning in the opposite direction from the pinion 14, causes the stem 6 to move vertically in one direction, while the stem 16 moves in the other direction. Consequently the lower edge of the peg 14 approaches the level of the under side of the plates 3, the adjacent faces of the plates 4 and 24 are likewise approaching each other. The spaced relation between the plates 3 and peg 14, which is the gaging and testing end of the device, is therefore the same at all times as that between the plates 4 and 24, where any necessary tooth filing is done, it being of course understood that in the initial setting up of the device, exactly the same spacing must be had when the stem 16 is put in place. I

In operation the peg teeth of the saw are first sharpened and set, all of course to the same level as is customary. The accuracy of this operation may betested by resting the edges of the teeth against the plates 3 or 4,

or any straight edge. This accomplished, the raher teeth must be trued up to conform to the new level of the peg teeth. The wheel 8 is then turned a certain amount from the zero point (when the plate, 24 will rest on the plates 4 and the lower end of the peg 14 will be in the same plane as the lower faces of the plates 3) until the setting of the peg will indicate the desired amount of clearance between the peg teeth and the raker teeth 28, which clearance, as stated in the preamble, should be exact.

The saw is then tested by placing the edges of the peg teeth against the under side of the plates 3, and moving the same until the peg is adjacent a raker tooth. The entire length of the saw is tested in this manner, and if the peg passes over any of the raker teeth with space therebetween the peg teeth must be iiled down some more, the lowest raker tooth being the one to which all the others are conformed. The saw, or the device, is then inverted, and placed so that the peg teeth rest on the up oer surface of the plates 4, while, each raker tooth in turn is projected into the slot 25 in the plate 24. 1

Any points of these teeth which project beyond the face of the plate are therefore too long, and are filed off until they are level with the plate 24, which. is made of hardened steel to resist the action of a file. W hen this is accomplished throughout the length of the saw, the teeth 28 will of course be all the same height relative to the teeth 27, which height will be that previously determined by the setting of the wheel 8.

From the foregoing description it will be readily seen that T have'produced such a device as substantially fulfils the object of the invention as set forth herein.

While this specification sets forth in de-' tail. the present and preferred construction of the device still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

1. A raher-tooth gage comprising a vertical frame having transverse top'and bottom plates extending lengthwise thereof, a peg adapted for vertical movement relative to the top plate and to project beyond the under face thereof, a support for the peg, a slotted plate parallel to the bottom plate, and adapted for vertical movement relative thereto, and means whereby the peg and slotted plate may be moved in such vertical relation simultaneously and at a uniform plates being in parallel alinement, a vertical peg supported from the frame projecting between the top plates, a slotted plate covering the space between the lower plates and parallel thereto, and means for moving the peg and slotted plate vertically and relative to the top and bottom plates simultaneously and at the same rate of speed whereby the vertical spacing between the end of the peg and the adjacent faces of the top plates will remain in constant relation with the vertical spacing between the adjacent faces of the slotted plate and the bottom plates.

3. A raker-tooth gage comprising a vertical frame, transverse and spaced top and bottom plates on the frame, each pair of plates being in parallel alinement, a vertical peg supported from the frame positioned between the upper plates and adapted to proj ect below the under side of said top plate, a slotted plate parallel to the bottom plates above the same and covering the space therebetwecn, the distance from the end of the peg. to the adjacent faces of the top plates being exactly the same as the distance between adjacent faces of the slotted and bottom plates, and means for moving the peg and slotted plate to alter such spacing while maintaining the constant relation.

4:. A raker-tooth gage comprising a vertical frame, transverse and spaced top and bottom plates on the frame, each pair of plates being in parallel alinement, a vertical peg supported from the frame positioned between the upper plates and adapted to project below the under side of said top plate, a slotted plate parallel to the bottom plates above the same and covering the space therebetween, the distance from the end of the peg to the adjacent faces of the top plates being exactly the same as the distance between adjacent faces of the slotted and bottom plates, and means for moving the peg and slotted plate in unison to alter such spacing and to maintain the constant relation thereof.

5. A raker-tooth gage comprising a vertical frame, transverse and spaced top and bottom plates on the frame, each pair of plates being in parallel alinement, a vertical peg supported from the frame positioned between the upper plates and adapted to project below the under side of said top plate, a slotted plate parallel to the bottom plates above the same and covering the space therebetween, the distance from the end of the peg to the adjacent faces of the top plates being exactly the same as the distance between adjacent faces of the slotted and bottom plates, a pinion, a stem thereon threaded into the frame in vertical alinement with and connected with the peg, another pinion meshingwith the first named pinion, a stem thereon threaded into the frame and connected to the bottom plate,

and means for rotating said pinions.

6. A raker-tootli gage comprising a vertical frame, transverse and spaced top and bottom plates on the frame, each pair of plates being in parallel alinement, a vertical peg supported from the frame positioned between the upper plates and adapted to project below the under side of said top plate,a' slotted plate parallel to the bottom plates above the same and covering the space therebetween, the distance from the end of the peg to the adjacent faces of the top plates being exactly the same as the distance between adjacent faces of the slotted and bottom plates, a pinion, a stem thereon threaded into the frame in vertical alinement with and connected with the peg, another pinion meshing with the first named pinion, a stem thereon threaded into the frame and connected to the bottom plate, and means for rotating said pinions, said pinions being of equal size and the threaded stems having equal pitch, whereby when said pinions are turned, the peg and slotted plate will move in opposite directions and at the same rate of speed.

In testimony whereof I aflix my signature.

GUSTA'VE A. REINKE. 

